WO2019095009A1 - Method and system for constant temperature control of motorized spindles - Google Patents
Method and system for constant temperature control of motorized spindles Download PDFInfo
- Publication number
- WO2019095009A1 WO2019095009A1 PCT/AU2018/051219 AU2018051219W WO2019095009A1 WO 2019095009 A1 WO2019095009 A1 WO 2019095009A1 AU 2018051219 W AU2018051219 W AU 2018051219W WO 2019095009 A1 WO2019095009 A1 WO 2019095009A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- temperature
- voltage
- set point
- speed
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 230000001360 synchronised effect Effects 0.000 claims description 20
- 230000004907 flux Effects 0.000 claims description 18
- 230000006698 induction Effects 0.000 claims description 13
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 8
- 238000003754 machining Methods 0.000 description 5
- 239000002826 coolant Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/60—Controlling or determining the temperature of the motor or of the drive
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/047—V/F converter, wherein the voltage is controlled proportionally with the frequency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/14—Methods or arrangements for maintaining a constant temperature in parts of machine tools
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/06—Rotor flux based control involving the use of rotor position or rotor speed sensors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/14—Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/60—Controlling or determining the temperature of the motor or of the drive
- H02P29/64—Controlling or determining the temperature of the winding
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/60—Controlling or determining the temperature of the motor or of the drive
- H02P29/66—Controlling or determining the temperature of the rotor
- H02P29/662—Controlling or determining the temperature of the rotor the rotor having permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/0085—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for high speeds, e.g. above nominal speed
- H02P21/0089—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for high speeds, e.g. above nominal speed using field weakening
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
- H02P2207/01—Asynchronous machines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Definitions
- the present invention relates to a system method and apparatus for constant temperature control of motorized spindles.
- Motorised spindles are driven by electric motors whose stator and rotor are integral parts of the spindle.
- spindles are used in an environment of unpredictable speed and torque loads, leading to varying losses in the motor, which consequently causes temperature variations.
- the motorised spindle experiences dimension variations that cause changes in the dimensions of the workpiece.
- accuracy is required at high tolerance levels (i.e. micron and sub micron levels), even very minor dimensional changes due to temperature can have an effect on the production of accurately machined parts.
- thermal effect in motorised spindles is still an open problem.
- the present invention provides a method to exploit the motor capability so as to actively control the motor temperature with a temperature controller embedded in the motor drive.
- the method may be applied in embedded axis drives and a variety of motor types, including but not limited to: rotary motors, linear motors, motorised spindles, synchronous motors including permanent magnet spindle motors and asynchronous motors including induction motors.
- the motor is an integral part of a larger component such as a spindle
- the heat losses are then transferred to other components of the spindle which can cause proportional dimensional changes. Even minor dimensional changes can have a significant effect on the production of accurately machined work pieces. Heat can also be dissipated from the motor to other machine components in the vicinity of the motor.
- the invention can be applied to reduce the thermal effect on these components or affect the components in a more predictable manner.
- the present invention provides a method of controlling the temperature of a synchronous motor, wherein the losses are modified by varying a synchronous voltage in phase with the motor flux.
- the method includes the steps of: (a) determining the required load on the motor and providing a first motor voltage to meet the required load; (b) providing a predetermined temperature set point for the motor; (c) determining the temperature of the motor; (d) comparing the temperature of the motor against the predetermined temperature set point; (e) adjusting the motor synchronous voltage in phase with the motor flux.
- the present invention provides, a system for controlling the temperature of an electric motor by adjusting the electric losses in the motor.
- the predetermined temperature set point for the motor of step (b) is set by the operator depending on the desired load sequence.
- step (g) includes incorporating a motor datasheet associated with the motor, when adjusting the motor load measurement.
- a motor datasheet associated with the motor
- normal motor speed control may be applied using the normal V/F from the motor datasheet.
- the system includes: an interface for providing one or more parameters to a CNC component which controls one or more drive units and in turn one or more motors, the CNC component programmed to: (a) determine the required load on the motor and providing a first motor voltage to meet the required load; (b) provide a predetermined temperature set point for the motor; (c) determine the temperature of the motor; (d) compare the temperature of the motor against the predetermined temperature set point; and (e) adjust the motor synchronous voltage in phase with the motor flux.
- a CNC component which controls one or more drive units and in turn one or more motors
- the CNC component programmed to: (a) determine the required load on the motor and providing a first motor voltage to meet the required load; (b) provide a predetermined temperature set point for the motor; (c) determine the temperature of the motor; (d) compare the temperature of the motor against the predetermined temperature set point; and (e) adjust the motor synchronous voltage in phase with the motor flux.
- the load (i.e. its speed and the load) of the motor is of primary concern and temperature is of secondary concern.
- the temperature variation is limited to the minimum range.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Multiple Motors (AREA)
- Control Of Temperature (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18879586.8A EP3711156A4 (en) | 2017-11-17 | 2018-11-15 | Method and system for constant temperature control of motorized spindles |
US16/765,050 US11394331B2 (en) | 2017-11-17 | 2018-11-15 | Method and system for constant temperature control of motorized spindles |
AU2018368814A AU2018368814B2 (en) | 2017-11-17 | 2018-11-15 | Method and system for constant temperature control of motorized spindles |
CN201880086019.9A CN111886798A (en) | 2017-11-17 | 2018-11-15 | Method and system for constant temperature control of motorized spindle |
JP2020527013A JP2021503273A (en) | 2017-11-17 | 2018-11-15 | Methods and systems for constant temperature control of electric spindles |
KR1020207017296A KR20200088862A (en) | 2017-11-17 | 2018-11-15 | Method and system for constant temperature control of electric spindle |
US17/864,705 US11817807B2 (en) | 2017-11-17 | 2022-07-14 | Method and system for constant temperature control of motorized spindles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2017904657A AU2017904657A0 (en) | 2017-11-17 | METHOD AND SYSTEM FOR CONSTANT TEMPERATURE CONTROL of MOTORIZED SPINDLES | |
AU2017904657 | 2017-11-17 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/765,050 A-371-Of-International US11394331B2 (en) | 2017-11-17 | 2018-11-15 | Method and system for constant temperature control of motorized spindles |
US17/864,705 Continuation US11817807B2 (en) | 2017-11-17 | 2022-07-14 | Method and system for constant temperature control of motorized spindles |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019095009A1 true WO2019095009A1 (en) | 2019-05-23 |
Family
ID=66538355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2018/051219 WO2019095009A1 (en) | 2017-11-17 | 2018-11-15 | Method and system for constant temperature control of motorized spindles |
Country Status (7)
Country | Link |
---|---|
US (2) | US11394331B2 (en) |
EP (1) | EP3711156A4 (en) |
JP (1) | JP2021503273A (en) |
KR (1) | KR20200088862A (en) |
CN (1) | CN111886798A (en) |
AU (1) | AU2018368814B2 (en) |
WO (1) | WO2019095009A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE2130352A1 (en) * | 2021-12-10 | 2023-06-11 | Atlas Copco Ind Technique Ab | Method of controlling an electric motor of a tightening tool |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US20110050141A1 (en) * | 2009-08-31 | 2011-03-03 | Gm Global Technology Operations, Inc. | Electric motor stator winding temperature estimation |
US20150002054A1 (en) * | 2013-06-28 | 2015-01-01 | HORIBA International Corporation | Electric machine temperature control |
US9496817B1 (en) * | 2015-06-21 | 2016-11-15 | Freescale Semiconductor, Inc. | Electric motor thermal management |
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FR2614481B1 (en) * | 1987-02-13 | 1990-08-31 | Pk I | METHOD FOR CONTROLLING AN ASYNCHRONOUS MOTOR AND ELECTRIC DRIVE IMPLEMENTING THIS METHOD |
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ATE390244T1 (en) | 2005-02-08 | 2008-04-15 | Mikron Agie Charmilles Ag | CHECKING PROCEDURE FOR A MACHINE TOOL |
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-
2018
- 2018-11-15 KR KR1020207017296A patent/KR20200088862A/en not_active Application Discontinuation
- 2018-11-15 EP EP18879586.8A patent/EP3711156A4/en active Pending
- 2018-11-15 AU AU2018368814A patent/AU2018368814B2/en active Active
- 2018-11-15 JP JP2020527013A patent/JP2021503273A/en active Pending
- 2018-11-15 CN CN201880086019.9A patent/CN111886798A/en active Pending
- 2018-11-15 WO PCT/AU2018/051219 patent/WO2019095009A1/en active Search and Examination
- 2018-11-15 US US16/765,050 patent/US11394331B2/en active Active
-
2022
- 2022-07-14 US US17/864,705 patent/US11817807B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110050141A1 (en) * | 2009-08-31 | 2011-03-03 | Gm Global Technology Operations, Inc. | Electric motor stator winding temperature estimation |
US20150002054A1 (en) * | 2013-06-28 | 2015-01-01 | HORIBA International Corporation | Electric machine temperature control |
US9496817B1 (en) * | 2015-06-21 | 2016-11-15 | Freescale Semiconductor, Inc. | Electric motor thermal management |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE2130352A1 (en) * | 2021-12-10 | 2023-06-11 | Atlas Copco Ind Technique Ab | Method of controlling an electric motor of a tightening tool |
SE545773C2 (en) * | 2021-12-10 | 2024-01-09 | Atlas Copco Ind Technique Ab | Method of controlling an electric motor of a tightening tool |
Also Published As
Publication number | Publication date |
---|---|
US20200366233A1 (en) | 2020-11-19 |
AU2018368814B2 (en) | 2023-01-12 |
US11817807B2 (en) | 2023-11-14 |
AU2018368814A1 (en) | 2020-07-02 |
EP3711156A1 (en) | 2020-09-23 |
EP3711156A4 (en) | 2022-01-26 |
KR20200088862A (en) | 2020-07-23 |
US11394331B2 (en) | 2022-07-19 |
CN111886798A (en) | 2020-11-03 |
US20230044412A1 (en) | 2023-02-09 |
JP2021503273A (en) | 2021-02-04 |
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